18134851 has 12 divisors (see below), whose sum is σ = 21496752. Its totient is φ = 15248688.

The previous prime is 18134849. The next prime is 18134867. The reversal of 18134851 is 15843181.

It is not a de Polignac number, because 18134851 - 2¹ = 18134849 is a prime.

It is a Duffinian number.

18134851 is a modest number, since divided by 4851 gives 1813 as remainder.

It is not an unprimeable number, because it can be changed into a prime (18134351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 895 + ... + 6088.

It is an arithmetic number, because the mean of its divisors is an integer number (1791396).

Almost surely, 2^18134851 is an apocalyptic number.

18134851 is a deficient number, since it is larger than the sum of its proper divisors (3361901).

18134851 is an equidigital number, since it uses as much as digits as its factorization.

18134851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7050 (or 7043 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 18134851 is about 4258.5033756004. The cubic root of 18134851 is about 262.7269740577.

The spelling of 18134851 in words is "eighteen million, one hundred thirty-four thousand, eight hundred fifty-one".